Ken Bessler <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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> Date: Mon, 12 Nov 2007 13:39:48 -0500
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> Subject: Re: [drakelist] Deaf TR4
>
>
> Garey Barrell made an utterance to the drakelist gang
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> Ken -
>
> More likely a Bias supply failure. Probably a shorted electrolytic
> capacitor in the AC-4.
>
> The Bias supply should read approximately -65 VDC at the transceiver.
> Most all the AC-4 power supply filter caps are years past their life
> expectancy and are just waiting for the most inopportune time to die!
>
> The AC-4R board/kit from Mike Bryce at the Heathkitshop is the ideal way
> to deal with the problem, and set your supply to work for the next 30 years.
>
> 73, Garey - K4OAH
> Glen Allen, VA
>
> Drake 2-B, 4-B & C-Line Service Supplement CDs
>
>
I measure -26.63Vdc at pin 9....
Ken
73's de Ken KG0WX - Kadiddlehopper #11808,
Flying Pigs #-1055, Grid EM17ip
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